It wasnarrated from 'Umar bin Khattab that the Messenger of Allah(ﷺ)said:
"The food of one is sufficient for two, and the food oftwois sufficient for three or four, and the food of four issufficientfor five or six.'" (RU)
English reference (RU): Vol. 4, Book 29, Hadith 3255 (RU)
Arabic reference (RU): Book 29, Hadith 3378 (RU)